A multi-function docking assembly electrically coupleable with a portable digital media storage and playback device is provided. The assembly includes a body adapted to receive and retain the media device, an electrical coupling adapted to engage the media device when the same is received by the body, a transmitter for wirelessly transmitting media content to an external receiving device, an electrical circuit element to conduct power, and an authentication element. Any of various authentication methods are use to ensure and/or regulate interoperability between the media device and the docking assembly. Multiple discrete tiers of functionality of the audio player and/or portable digital media storage and playback device may be enabled or disabled based on an authentication operation.
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53. A docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
at least one electrical coupling adapted to engage the portable digital media storage and playback device;
at least one electrical circuit element adapted to conduct power from an external power source to the at least one electrical coupling;
a transmitter connectable with the portable digital media storage and playback device via the at least one electrical coupling and adapted to wirelessly transmit media content from the portable digital media storage and playback device to an external receiving device;
a data exchange port; and
an authentication element adapted to provide an authentication signal to the portable digital media storage and playback device, wherein the authentication element comprises a reprogrammable memory storing an authentication scheme, and the authentication element may be reprogrammed using the data exchange port.
51. A docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
at least one electrical coupling adapted to engage the portable digital media storage and playback device;
a data exchange port;
at least one electrical circuit element adapted to conduct power from an external power source to the at least one electrical coupling; and
a body structure housing:
a transmitter connectable with the portable digital media storage and playback device via the at least one electrical coupling and adapted to wirelessly transmit media content from the portable digital media storage and playback device to an external receiving device; and
an authentication element adapted to provide an authentication signal to the portable digital media storage and playback device, wherein the authentication element comprises a reprogrammable memory storing an authentication scheme, and the authentication element may be reprogrammed using the data exchange port.
1. A docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
a body adapted to receive and retain the portable digital media storage and playback device;
at least one electrical coupling associated with the body and adapted to engage the portable digital media storage and playback device when the portable digital media storage and playback device is received by the body;
a transmitter connectable with the portable digital media storage and playback device via the at least one electrical coupling and adapted to wirelessly transmit media content from the portable digital media storage and playback device to an external receiving device;
at least one electrical circuit element adapted to conduct power from an external power source to the at least one electrical coupling;
a data exchange port; and
an authentication element adapted to provide an authentication signal to the portable digital media storage and playback device, wherein the authentication element comprises a reprogrammable memory storing an authentication scheme, and the authentication element may be reprogrammed using the data exchange port.
36. A docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
a cavity-defining body adapted to receive and retain the portable digital media storage and playback device;
at least one electrical coupling disposed in the cavity and adapted to engage the portable digital media storage and playback device when the portable digital media storage and playback device is received by the body;
a transmitter connectable with the portable digital media storage and playback device via the at least one electrical coupling and adapted to wirelessly transmit media content from the portable digital media storage and playback device to an external receiving device;
at least one electrical circuit element adapted to conduct power from an external power source through the at least one electrical coupling to the portable digital media storage and playback device;
a data exchange port; and
an authentication element adapted to provide an authentication signal to the portable digital media storage and playback device, wherein the authentication element comprises a reprogrammable memory storing an authentication scheme, and the authentication element may be reprogrammed using the data exchange port.
2. The docking assembly of
3. The docking assembly of
4. The docking assembly of
5. The docking assembly of
6. The docking assembly of
7. The docking assembly of
8. The docking assembly of
9. The docking assembly of
10. The docking assembly of
11. The docking assembly of
12. The docking assembly of
14. The docking assembly of
15. The docking assembly of
17. The docking assembly of
18. The docking assembly of
19. The docking assembly of
20. The docking assembly of
21. The docking assembly of
22. The docking assembly of
23. The docking assembly of
24. The docking assembly of
25. The docking assembly of
26. The docking assembly of
27. A portable digital media storage and playback system comprising:
the docking assembly of
a portable digital media storage and playback device operatively coupled to the docking assembly.
28. The system of
29. The system of
30. A method for broadcasting signals from a portable digital media storage and playback device to an external receiving device, the method utilizing the docking assembly of
joining the docking assembly and the portable digital media storage and playback device in a single step of depressing at least a portion of the portable digital media storage and playback device into or against the body to simultaneously engage the at least one electrical coupling;
performing an authentication step including communicating an authentication signal between the authentication element and the portable digital media storage and playback device; and
wirelessly transmitting a signal including media content played by the portable digital media storage and playback device.
31. The method of
34. The method of
35. The method of
37. The docking assembly of
38. The docking assembly of
39. The docking assembly of
40. The docking assembly of
41. The docking assembly of
42. The docking assembly of
43. The docking assembly of
44. The docking assembly of
45. The docking assembly of
46. A portable digital media storage and playback system comprising:
the docking assembly of
a portable digital media storage and playback device operatively coupled to the docking assembly.
47. The system of
48. The system of
49. A method for broadcasting signals from a portable digital media storage and playback device to an external receiving device utilizing the docking assembly of
joining the docking assembly and the portable digital media storage and playback device in a single step of depressing at least a portion of the portable digital media storage and playback device into or against the body to simultaneously engage the at least one electrical coupling;
performing an authentication step including communicating an authentication signal between the authentication element and the portable digital media storage and playback device; and
wirelessly transmitting a signal including media content played by the portable digital media storage and playback device.
50. The method of
52. The docking assembly of
54. The docking assembly of
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This application claims benefit of U.S. patent application Ser. No. 10/197,367, filed on Jul. 17, 2002 and now issued as U.S. Pat. No. 6,591,085; of U.S. patent application Ser. No. 10/615,108, filed on Jul. 8, 2003 and now published as United States Patent Application Publication No. 2004/0058649; and of U.S. Provisional Patent Application Ser. No. 60/734,058, filed on Nov. 7, 2005. The disclosures of the foregoing applications and patents are hereby incorporated herein in their respective entireties. Priority of such applications is hereby claimed under the provisions of 35 U.S.C. 120 and/or 35 U.S.C. 119(e).
The present invention relates to accessories adapted for use with a portable digital media storage and playback device having a storage medium adapted to receive and store digital media files (such as, for example, MP3 (i.e., MPEG-1 audio layer 3) audio, WMA (Windows Media Audio) audio, MPEG-4 multimedia, and QuickTime multimedia files). More specifically, the invention relates to a multi-function docking assembly including signal transmission, power supply and/or charging, and authentication capability for such digital media storage and playback devices, and methods for broadcasting signals from a portable digital media storage and playback device coupled to a multi-function docking assembly.
Media players of various types are ubiquitous throughout the world, and have evolved through various forms over the years, from portable single transistor radios in the 1950's to tape cassette players, to compact disc players, and more recently to portable digital media storage and playback devices that enable a user to obtain digital media files (e.g., by download from an Internet site) and store same in storage medium of a player in any of various preferably compressed formats for subsequent selective playback.
Preferred digital media storage and playback devices utilize hard drives and/or flash memory to store digital media files. A number of digital media storage and playback devices have been developed and are commercially available, including: the iPod® family of products manufactured by Apple Computer, Inc.; the iRiver® family of products manufactured by iRiver Inc.; the Nomad™, Zen™ and MuVo® families of products manufactured by Creative Technology, Ltd.; the Rio® family of products manufactured by Digital Networks North America, Inc.; the DJ™ family of products manufactured by Dell Computer, Inc.; the Lyra® family of products manufactured by RCA/Thomson Multimedia, Inc.; and the Yepp'® and neXus™ families of products manufactured by Samsung Electronics Co., Ltd. Such devices having varying capacities but models permitting the storage of approximately 1000 or more commercial play length audio files are commonplace. Certain models having sophisticated displays are further able to store and playback image and/or video files.
Media storage and playback devices of the aforementioned type rely on batteries for their portability, and are typically provided with a headset for user listening.
One problem associated with the small size and light-weight characteristics of portable digital media storage and playback (“PDMSP”) devices, as requisite to their portability and ease of use, is battery life. Another problem is the personal character of the headphone-equipped PDMSP devices. A PDMSP device may be equipped with a speaker, but its small size and light-weight characteristics limit the size of the speaker, and small battery size would limit speaker output, making a speaker-equipped PDMSP device it less than desirable when a user seeks to transmit music from the same to a group of persons.
Various accessories have been developed for use with PDMSP devices. For manufacturers and purchasers of PDMSP devices, it would be desirable to ensure and/or regulate interoperability between such devices and accessories intended to connect therewith. For example, the original equipment manufacturer (OEM) of a PDMSP device may wish to avoid warranty claims and/or reputational damage that might result due to operating problems or hardware failures (e.g., inferior sound quality, battery overcharging, etc.) when the PDMSP device is connected with an accessory device of questionable quality sourced by a supplier of unknown repute. It may be difficult for an end user to determine the quality of an accessory device without making a purchase and possibly learning the hard way. Additionally, or alternatively, the PDMSP device OEM may wish to regulate the interoperability of accessories with the PDMSP device to derive additional revenue by producing accessories itself or by licensing to third parties for value the right to produce such accessories. Using and regulating by license the availability to preferred third party accessory manufacturers of proprietary components such as connectors can provide some degree of control to PSMSP device OEMs in this regard; however, such a strategy may be circumvented with relative ease by unlicensed parties with relative ease since such connectors may be readily copied.
Accordingly, there exists a need for accessories capable of interoperating with and expanding the functionality of portable digital media storage and playback devices.
The present invention relates in one aspect to a docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
In another aspect, the present invention relates to a method for broadcasting signals from the portable media storage and playback device to an external receiving device, the method comprising the steps of:
In another aspect, the present invention relates to a docking assembly electrically coupleable with a portable digital media storage and playback device, the assembly comprising:
In yet another aspect, the present invention relates to a method for broadcasting signals from a portable digital media storage and playback device to an external receiving device, the method comprising the steps of:
In still another aspect, the present invention relates to a method for broadcasting signals from a portable digital media storage and playback device to an external receiving device, the method comprising the steps of:
In another aspect, the present invention relates to a portable digital media storage and playback system comprising a docking assembly as previously described operatively coupled to a portable digital media storage and playback device.
Other aspects, features and embodiments of the invention will be more fully apparent from the ensuing disclosure and appended claims.
The present invention provides a multi-function docking assembly for a portable digital media storage and playback device that dramatically increases the utility of the basic portable digital media storage and playback (PDMSP) device. A docking assembly according to the present invention preferably provides device retention, wireless signal transmission, power supply and/or handling utility, and authentication utility to ensure that the docking assembly is interoperable with an associated PDMSP device.
A signal transmitter utilized in a docking assembly according to the present invention preferably comprises a radio frequency (RF) transmitter adapted to transmit at any of various RF frequencies a signal including media content played by the PDMSP device, enabling RF reception of media content signals that then can be received and played by an external receiving device. Preferred RF frequencies in one embodiment include FM signals in a range of preferably from about 87.5 to about 108 MHz. Operable RF frequencies in another embodiment include a range from about 800 MHz to about 10 GHz. In another embodiment, the wireless transmitter may transmit a signal compatible with a wireless network, such as an IEEE 802.16-compliant (WiMax) network, IEEE 802.11-complaint (Wi-Fi) network, an IEEE 802.15.1-compliant (Bluetooth) network, or similar or equivalent networks. Other frequency ranges or communication standards may be used where desired or appropriate. Examples of external receiving devices for use with docking assemblies according to the present invention include, but are not limited to, a FM radio receiver in a vehicle, a FM radio receiver in reception range of the transmitter, a wireless fidelity (WiFi) enabled personal computer or personal digital assistant, a mobile telephone, and a wireless video receiving device. Wireless signals may be intended for local-area or extended-area broadcast.
If desired, a wireless receiver (not shown) may be provided, and preferably integrated with the wireless transmitter 549 to form a transceiver adapted for two-way network communication.
In one example, a multi-function docking assembly including a FM transmitter, an electrical circuit element for providing power supply and/or charging utility, and an authentication element may be deployed in an automobile or other vehicular environment, wherein the docking assembly is powered by a power adaptor plugged into a cigarette lighter socket of the vehicle. The FM transmitter then transmits music signals originated by the PDMSP device to the FM receiver in the vehicle, enabling the acoustic system of the vehicle to be employed for broadcast of the music to the interior passenger compartment of the vehicle.
A multi-function docking assembly may as hereinafter described more fully comprise an AC charger enabling the battery of the PDMSP device to be recharged to a more fully charged state allowing its use period to be lengthened while on battery power.
The multi-function docking assembly may be provided in a kit including a base docking unit and various adaptor/charger/mount accessories, as hereinafter described.
Although the ensuing discussion is directed to an embodiment having specific use and applicability to an iPod® PDMSP device, it will be recognized that the utility of the invention is not thus limited, but rather extends to and encompasses other PDMSP devices. Accordingly, although an early-generation iPod® PDMSP device may utilize a Firewire® (IEEE 1394) port for power connection purposes, other types of port and electrical connection means may be employed. For example, more recently-released iPod® PDMSP devices employ 30-pin couplings.
Referring now to the drawings,
As shown in
In one embodiment, a signal transmitter is disposed substantially within the body portion 12 of the multi-function docking assembly to transmit media content played through the PDMSP device to a range of RF (e.g., FM) frequencies. The signal transmitter may be of any suitable type, and operates to transmit media content to an external receiver disposed in signal receiving proximity to the multi-function docking assembly and PDMSP device docked therein.
The signal transmitter may for example be provided having a tuning frequency in the FM band of 87.5 to 108.1 megahertz (MHz) and a transmission range of 4-6 feet or more. Stereo transmitters of such type are readily commercially available, and are of appropriate size for incorporation in a multi-function docking assembly.
A FM transmitter may simply transmit at a frequency fixed in the aforementioned 88-95 MHz band, or the transmitter may be tunable to select a specific frequency within such spectrum, preferably including at least one frequency generally in a range including about 88 MHz to about 108 MHz.
In operation of such an embodiment, an external FM receiver receives the transmitted audio from the PDMSP device transmitted by the multi-function docking assembly, and the FM receiver (e.g., located in a user's automobile) is then able to receive (e.g., by tuning the FM receiver to the frequency used by the transmitter in the multi-function docking assembly), amplify, and reproduce via the vehicular sound system the audio content as audible sound in the automobile passenger cabin.
The interior of the body or housing of a multi-function docking assembly preferably also includes circuitry and components for charging the battery of the PDMSP device, through the Firewire® port or other (e.g., USB) input port, as well as providing power to the PDMSP device when docked in the multi-function docking assembly.
As shown in
The multi-function docking assembly may also be provided with an ON/OFF switch, for selectively actuating the PDMSP device, controlling the charging function of the multi-function docking assembly, etc.
When the PDMSP device is actuated to play the stored audio content, the corresponding signal is transmitted through coupling element 26 shown in
Concurrently, the PDMSP device can be electrically charged to renew the battery power of the device, so that when undocked from the multi-function docking assembly, the PDMSP device may be outfitted with earphones and deployed in a personal listening arrangement.
Although the
The multi-function docking assembly as shown in
The plate 102 shown in
The adaptor shown in
The multi-function docking assembly as shown in
The multi-function docking assembly 200 includes a main body portion 212 defining a cavity for selectively reposing the PDMSP device therein. The cavity is bounded by back wall 214 and side rails 218 and 220. Extending into the cavity is a male coupling or connector 226, which may serve to couple the multi-function docking assembly with the headphone jack of the PDMSP device, as well as a coupling 228 matably engagable with the Firewire® port of the PDMSP device. Such couplings 226, 228 engage PDMSP device when it is received by the docking assembly 200. Thus, the docking assembly 200 and PDMSP device may be joined in a single step of depressing at least a portion of the PDMSP device into or against the body to simultaneously engage the couplings 226, 228. The cavity as shown is also bounded by laterally inwardly facing elements, which serve as inwardly extending tabs on the respective side rails, to assist in retaining the PDMSP device in position in the cavity during media content play, storage or charging of the player.
On the upper portion 222 of the multi-function docking assembly 200 in the position shown, is provided an LED power indicator light 230, and a Firewire® port adjustment switch 221, which serves to laterally reposition the coupling 228 in the cavity, so that the coupling is placed in register with the Firewire® port of the PDMSP device.
On the lower portion of the multi-function docking assembly 200 in the position illustrated in
In the ensuing
The multi-function docking assembly 300 has on a lower portion of the housing, on a frontal surface thereof, a frequency indicator display 330, which in the drawing indicates a frequency of 102.5 megahertz (MHz) being transmitted by the transmitter in the docking assembly. Below the frequency indicator display is a tuning control 332, which can be variously configured as a membrane switch, as a thumb-wheel control, or other control member that is selectively actuatable to increase or decrease the transmitter frequency, as desired. Preferably the FM transmitter has selectively adjustable digital frequency tuning, and the frequency indicator display is a digital display adapted to display the transmission frequency to the user.
To the right of the frequency indicator display 327 on the lower portion of the housing 312 is a power indicator 334, which may comprise an LED or other suitable element indicating the power “ON” or “OFF” status of the assembly. Adjacent to the power indicator 334 is an FM transmitter indicator element 336 which may likewise comprise an LED or other suitable element indicating the “ON” or “OFF” status of the FM transmitter disposed in the housing.
The multi-function docking assembly 300 of
It will therefore be recognized that the FM transmitter and power supply/charging assembly of the present invention may be widely varied in specific structure, while providing FM transmission ability to the PDMSP device docked therein, and concurrently providing charging capability to the PDMSP device battery, as well as power during docked usage of the PDMSP device.
The various adaptors shown, as well as the associated mounting articles, may be provided as a kit together with the FM transmitter and power supply/charging assembly, to provide a package of alternative parts for varied deployment of the docked PDMSP device.
One way to ensure or regulate interoperability between an accessory device (such as a multi-function docking assembly) and a PDMSP device is through the use of authentication technology. In a preferred embodiment, a docking assembly and a PDMSP device each include an authentication element, such as an integrated circuit, adapted to communicate with one another to execute an authentication scheme employed at least the first time that the accessory device is connected to the PDMSP device, with successful authentication being a prerequisite for the transfer of any substantive content or control signals between the PDMSP and the accessory device. Preferably, a challenge and response-based authentication scheme is employed for the authentication scheme.
Examples of integrated circuits that may be used to provide or easily adapted to provide such functionality include: the Texas Instruments BQ26150-family of ICs (including models BQ26150DCKR and BQ26150DCKRG4) (Texas Instruments Inc., Dallas, Tex.); the Dallas Semiconductor/Maxim DS2703-family of ICs (including models DS2703U and DS2703U+)(Maxim Integrated Products, Sunnyvale, Calif.); and the Intersil ISL6296 family of ICs (Intersil Corp., Milpitas, Calif.).
The PDMSP device includes a central processing unit or CPU 420 (such as a complex instruction set computer microcontroller) that interfaces with various other components. User keys 426 or other input elements may be used to communicate user commands to the CPU 420. A data storage element 425 utilizes any of a rotating disc (hard drive or microdrive) and flash memory to store various media files in addition to other data files and/or executable programs. A digital signal processor or DSP 428, which may be integrated into the CPU 420 if desired, may be used to execute post-processing algorithms like equalization and bass management on files to be output, either directly through the digital-to-audio converter or DAC 430 as a line level output, or through the DAC 430 and a headphone amplifier 432 as an amplified output with volume control. A data exchange element 434, preferably including Universal Serial Bus (USB) or Firewire® (IEEE 1394) connectivity, may be used to transfer data to or from the data storage element 425. An authorization element 435, preferably including an integrated circuit, may be used to authenticate an accessory device such as a multi-function docking assembly 450. A display element 424, preferably including a high resolution LCD or LED display, may be provided to drive graphical user interface menus, play still images, and/or play video files. A battery 421 is in electrical communication with a power management element 422, which may provide DC-DC step-down conversion utility for various electronic elements of the PDMSP device, linear regulation utility for the audio amplifier 432, DC-DC boost conversion utility for the display element 424, synchronization boost conversion utility for the data exchange element 434 or other input/output elements, and charge regulation/AC charging utility for the battery 421.
The multi-function docking assembly 450 includes one or more power supply/charging/conditioning elements 452 to receive power from an external power source 462, condition the same for use by various elements within the docking assembly 452, and/or conduct power to the PDMSP device 410 by way of the coupled interface couplings 451, 411. The power supplied to the PSMSP device from the external power source by way of the one or more power supply/charging/conditioning elements 452 may be used to power the PDMSP device 410 and/or charge the battery 421 of the same. The docking assembly 450 further includes an authorization element 455 such as described previously. The authorization element 455 preferably comprises an integrated circuit and a memory, with the memory preferably including both a public memory for storing unencrypted communicable information and secret or encrypted information. The authorization element 455 is preferably reprogrammable, such as by way of connection to a data exchange (e.g., USB or other) port 464 that may be linked to an appropriate device such as a personal computer or PDA to accomplish reprogramming functions if desired. Such reprogramming utility may be desirable, for example, to enable use of the docking assembly 450 with new releases of PDMSP devices 410 having potentially new and different authentication data or authentication schemes as such new PDMSP devices may become available. If desired, the authorization element 455 may be integrated into a central microprocessor associated with the docking assembly 450.
As noted previously, the multi-function docking assembly 450 includes a signal transmitter 460 adapted to transmit at any of various, preferably RF and more preferably FM, frequencies a signal including media content received from the PDMSP device 410. A display 454 preferably comprising a digital frequency indicator display 454 is provided to display the transmission frequency of the signal transmitter 460, with the transmission frequency subject to user adjustment via user keys 456 or an equivalent user input device. A dedicated antenna 461 in electrical communication with the signal transmitter 460 may be optionally provided. Alternatively, any of various electrical elements associated with the docking assembly such as a power supply cord may be used to enhance the transmission of signals from the transmitter 460. The docking assembly 450 may further include a line level output connector 468 to communicate a media content signal to any of various auxiliary devices connectable to the docking assembly 450.
In one embodiment, a challenge-and-response authentication scheme may utilize cyclic redundancy check (CRC) in an authentication transform. Challenges and keys of various bit lengths may be used. In one embodiment, a 32-bit random challenge and 96-bit secret ID are used in conjunction with a random polynomial and 16-bit seed value to generate a 16-bit CRC response. A unique CRC polynomial, CRC seed, and device ID value may be used in each device. Such values may be stored as encrypted text in public memory and unencrypted (plain) text in private memory, such that only a host system can decrypt the polynomial, seed, and ID values using a stored secret key. To authenticate a responder, the host reads the encrypted device ID, polynomial, and seed values from public memory, decrypts these values using a secret key, and then generates a (e.g., 32-bit) random challenge. The random challenge is transmitted to the responder, which uses challenge information from the host along with the plain-text version of polynomial coefficients, seed, and device ID to calculate the authentication CRC value. The host uses the polynomial coefficients, seed, and device ID that it decrypted, along with the random challenge that it sent to the responder to calculate the authentication CRC value. The responder authentication CRC value may be transmitted back to the host where the two authentication CRC values are compared, with a match serving to authenticate the responder and initiate system operation and/or substantive communication.
In another embodiment, a challenge-and-response authentication scheme may utilize an iterative hashing algorithm such as the SHA-1/HMAC secure hash algorithm, which has been widely used for authentication of Internet transactions. The authentication method is similar to a CRC-based scheme except it utilizes a different algorithm. The host reads a (e.g., 128-bit) encrypted device ID from the public memory and decrypts those values using the secret key to yield plain-text information with root keys. Then it generates a (e.g., 160-bit) random challenge that is transmitted to the responder, which uses the plain-text version of the ID along with the random challenge to calculate an authentication digest value. The host uses the decrypted ID and the same random challenge to calculate its own authentication digest value. When both digest values have been calculated, the host reads the authentication digest value from the responder and compares that value to its own authentication digest value. If a match is obtained, then the responder is authenticated and system operation and/or substantive communication may be initiated.
In one embodiment, an authentication element employs the Secure Hash Algorithm (SHA-1) specified in the Federal Information publication 180-1 and 180-2, and ISO/IEC 10118-3. An authentication IC embedded in the accessory device processes a host transmitted challenge using a stored secret key and unique ROM ID to produce a response word for transmission back to the host. The secret key is securely stored on-chip and never transmitted between the battery and the host. If each of the secret key and the ROM ID includes 64 bits, the response may include 160 bits.
Various methods for broadcasting signals from a PDMSP device to an external receiving device may be employed using devices disclosed herein.
In another embodiment, an authentication operation may involve multiple iterative steps to “unlock” various features or functions of a PDMSP device, such that multiple discrete tiers of functionality of the PDMSP device may be enabled or disabled depending on the result of an authentication operation between the PDMSP device and the multi-function docking assembly (or any other suitable accessory device not necessarily involving all the features of, or including features different from, multi-function docking assemblies as described herein). In other words, following an authentication operation, operation of the PDMSP device with a multi-function docking assembly or other accessory may commence, but in a limited or restricted fashion, or in an unrestricted fashion, depending on the result of the authentication operation. Different levels or tiers of operation that may be unlocked, whether individually in combination, depending on the result of an authentication operation include (but are not limited to) the following examples:
Thus, authentication elements and authentication methods according to the present invention permit not only “yes/no” threshold operability between a PDMSP device and an accessory device such as a multi-function docking assembly, but also permit discrete functions of a PDMSP device or between the PDMSP device and docked accessory to be enabled or disabled depending on the result of an authentication operation.
While the invention has been described herein with respect to various illustrative aspects, features and embodiments, it will be recognized that the invention is not thus limited, but that the present invention extends to and encompasses other features, modifications, and alternative embodiments, as will readily suggest themselves to those of ordinary skill in the art based on the disclosure and illustrative teachings herein. The claims that follow are therefore to be construed and interpreted as including all such features, modifications and alternative embodiments, within their spirit and scope
Grady, Jeff, Gustafson, Vincent K
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